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  • null problem when bind BigDecimal

    when bind a BigDecimal property,if the value is null,the following error occured.
    Failed to convert property value of type [java.lang.String] to required type [java.math.BigDecimal] for property 'projectTO.intendingIncome'; nested exception is java.lang.NumberFormatException: null
    it seamed not make the form bean yet.

    how to resolve the problem?
    thx
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